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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">  FUSE: Filesystem in Userspace</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">  Copyright (C) 2016 Nikolaus Rath &lt;Nikolaus@rath.org&gt;</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">  This program can be distributed under the terms of the GNU GPL.</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">  See the file COPYING.</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">*/</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;</div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;</div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#define FUSE_USE_VERSION 30</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;</div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &lt;config.h&gt;</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="fuse__lowlevel_8h.html">fuse_lowlevel.h</a>&gt;</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &lt;stdio.h&gt;</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &lt;stdlib.h&gt;</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &lt;string.h&gt;</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &lt;errno.h&gt;</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#include &lt;fcntl.h&gt;</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &lt;assert.h&gt;</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &lt;stddef.h&gt;</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#include &lt;unistd.h&gt;</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &lt;pthread.h&gt;</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#ifndef __linux__</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#include &lt;limits.h&gt;</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &lt;linux/limits.h&gt;</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#define FILE_INO 2</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#define FILE_NAME &quot;write_me&quot;</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="comment">/* Command line parsing */</span></div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="keyword">struct </span>options {</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;    <span class="keywordtype">int</span> writeback;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;    <span class="keywordtype">int</span> data_size;</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;} options = {</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    .writeback = 0,</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;    .data_size = 4096,</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;};</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="preprocessor">#define OPTION(t, p)                           \</span></div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="preprocessor">    { t, offsetof(struct options, p), 1 }</span></div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structfuse__opt.html">fuse_opt</a> option_spec[] = {</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    OPTION(<span class="stringliteral">&quot;writeback_cache&quot;</span>, writeback),</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    OPTION(<span class="stringliteral">&quot;--data-size=%d&quot;</span>, data_size),</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;    <a class="code" href="fuse__opt_8h.html#aca35962e17d189ceb5447f8eea11bd33">FUSE_OPT_END</a></div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;};</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span> got_write;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span> tfs_init (<span class="keywordtype">void</span> *userdata, <span class="keyword">struct</span> <a class="code" href="structfuse__conn__info.html">fuse_conn_info</a> *conn)</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;{</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    (void) userdata;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;    <span class="keywordflow">if</span>(options.writeback) {</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;        assert(conn-&gt;<a class="code" href="structfuse__conn__info.html#a8a1c61f5d7cc14249fb6971165bb958e">capable</a> &amp; <a class="code" href="fuse__common_8h.html#a4839fce31097f4b4da7a1f01169228fa">FUSE_CAP_WRITEBACK_CACHE</a>);</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;        conn-&gt;<a class="code" href="structfuse__conn__info.html#af45de81548b591f3004353a324e4e04d">want</a> |= <a class="code" href="fuse__common_8h.html#a4839fce31097f4b4da7a1f01169228fa">FUSE_CAP_WRITEBACK_CACHE</a>;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    }</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;}</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span> tfs_stat(<a class="code" href="fuse__lowlevel_8h.html#ad119a72f00b4cd2e4a500fd3364ae1e2">fuse_ino_t</a> ino, <span class="keyword">struct</span> stat *stbuf) {</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    stbuf-&gt;st_ino = ino;</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    <span class="keywordflow">if</span> (ino == <a class="code" href="fuse__lowlevel_8h.html#a14d7299559cf05272b838cfc6388ef91">FUSE_ROOT_ID</a>) {</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;        stbuf-&gt;st_mode = S_IFDIR | 0755;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;        stbuf-&gt;st_nlink = 1;</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    }</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ino == FILE_INO) {</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        stbuf-&gt;st_mode = S_IFREG | 0222;</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;        stbuf-&gt;st_nlink = 1;</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;        stbuf-&gt;st_size = 0;</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    }</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    <span class="keywordflow">else</span></div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;        <span class="keywordflow">return</span> -1;</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;}</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span> tfs_lookup(<a class="code" href="fuse__lowlevel_8h.html#a33e2aa4a8905a05397292ae047cd2257">fuse_req_t</a> req, <a class="code" href="fuse__lowlevel_8h.html#ad119a72f00b4cd2e4a500fd3364ae1e2">fuse_ino_t</a> parent,</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;                       <span class="keyword">const</span> <span class="keywordtype">char</span> *name) {</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    <span class="keyword">struct </span><a class="code" href="structfuse__entry__param.html">fuse_entry_param</a> e;</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    memset(&amp;e, 0, <span class="keyword">sizeof</span>(e));</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    <span class="keywordflow">if</span> (parent != <a class="code" href="fuse__lowlevel_8h.html#a14d7299559cf05272b838cfc6388ef91">FUSE_ROOT_ID</a>)</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;        <span class="keywordflow">goto</span> err_out;</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (strcmp(name, FILE_NAME) == 0)</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;        e.ino = FILE_INO;</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    <span class="keywordflow">else</span></div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        <span class="keywordflow">goto</span> err_out;</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    <span class="keywordflow">if</span> (tfs_stat(e.ino, &amp;e.attr) != 0)</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;        <span class="keywordflow">goto</span> err_out;</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    <a class="code" href="fuse__lowlevel_8h.html#a672c45e126cd240f4bcd59bf9b7e3708">fuse_reply_entry</a>(req, &amp;e);</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    <span class="keywordflow">return</span>;</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;err_out:</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;    <a class="code" href="fuse__lowlevel_8h.html#a2553c03f9a63c75e609e67f90a3a5d88">fuse_reply_err</a>(req, ENOENT);</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;}</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span> tfs_getattr(<a class="code" href="fuse__lowlevel_8h.html#a33e2aa4a8905a05397292ae047cd2257">fuse_req_t</a> req, <a class="code" href="fuse__lowlevel_8h.html#ad119a72f00b4cd2e4a500fd3364ae1e2">fuse_ino_t</a> ino,</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;                        <span class="keyword">struct</span> <a class="code" href="structfuse__file__info.html">fuse_file_info</a> *fi) {</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    <span class="keyword">struct </span>stat stbuf;</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;    (void) fi;</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    memset(&amp;stbuf, 0, <span class="keyword">sizeof</span>(stbuf));</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    <span class="keywordflow">if</span> (tfs_stat(ino, &amp;stbuf) != 0)</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;        <a class="code" href="fuse__lowlevel_8h.html#a2553c03f9a63c75e609e67f90a3a5d88">fuse_reply_err</a>(req, ENOENT);</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;    <span class="keywordflow">else</span></div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;        <a class="code" href="fuse__lowlevel_8h.html#ad28378dc569019c32acdb4995d70be18">fuse_reply_attr</a>(req, &amp;stbuf, 5);</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;}</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span> tfs_open(<a class="code" href="fuse__lowlevel_8h.html#a33e2aa4a8905a05397292ae047cd2257">fuse_req_t</a> req, <a class="code" href="fuse__lowlevel_8h.html#ad119a72f00b4cd2e4a500fd3364ae1e2">fuse_ino_t</a> ino,</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;                     <span class="keyword">struct</span> <a class="code" href="structfuse__file__info.html">fuse_file_info</a> *fi) {</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;    <span class="keywordflow">if</span> (ino == <a class="code" href="fuse__lowlevel_8h.html#a14d7299559cf05272b838cfc6388ef91">FUSE_ROOT_ID</a>)</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;        <a class="code" href="fuse__lowlevel_8h.html#a2553c03f9a63c75e609e67f90a3a5d88">fuse_reply_err</a>(req, EISDIR);</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;    <span class="keywordflow">else</span> {</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;        assert(ino == FILE_INO);</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;        <a class="code" href="fuse__lowlevel_8h.html#a170f8c6b953d70928e83bcecee43bfdc">fuse_reply_open</a>(req, fi);</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    }</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;}</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span> tfs_write(<a class="code" href="fuse__lowlevel_8h.html#a33e2aa4a8905a05397292ae047cd2257">fuse_req_t</a> req, <a class="code" href="fuse__lowlevel_8h.html#ad119a72f00b4cd2e4a500fd3364ae1e2">fuse_ino_t</a> ino, <span class="keyword">const</span> <span class="keywordtype">char</span> *buf,</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;                      <span class="keywordtype">size_t</span> size, off_t off, <span class="keyword">struct</span> <a class="code" href="structfuse__file__info.html">fuse_file_info</a> *fi) {</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    (void) fi; (void) buf; (void) off;</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;    <span class="keywordtype">size_t</span> expected;</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;    assert(ino == FILE_INO);</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;    expected = options.data_size;</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    <span class="keywordflow">if</span>(options.writeback)</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;        expected *= 2;</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    <span class="keywordflow">if</span>(size != expected)</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;        fprintf(stderr, <span class="stringliteral">&quot;ERROR: Expected %zd bytes, got %zd\n!&quot;</span>,</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;                expected, size);</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;    <span class="keywordflow">else</span></div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;        got_write = 1;</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;    <a class="code" href="fuse__lowlevel_8h.html#aa3cfa73f61d6ef461ab5a3fbf859eb97">fuse_reply_write</a>(req, size);</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;}</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;<span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structfuse__lowlevel__ops.html">fuse_lowlevel_ops</a> tfs_oper = {</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    .<a class="code" href="structfuse__lowlevel__ops.html#aa8ed20e1d06c42a386404fba0d3e56b5">init</a>       = tfs_init,</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    .lookup     = tfs_lookup,</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    .getattr    = tfs_getattr,</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    .open       = tfs_open,</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    .write      = tfs_write,</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;};</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span>* run_fs(<span class="keywordtype">void</span> *data) {</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;    <span class="keyword">struct </span>fuse_session *se = (<span class="keyword">struct </span>fuse_session*) data;</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;    assert(<a class="code" href="fuse__lowlevel_8h.html#a5f1e538aa3287e251afbe985438c4249">fuse_session_loop</a>(se) == 0);</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;    <span class="keywordflow">return</span> NULL;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;}</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span> test_fs(<span class="keywordtype">char</span> *mountpoint) {</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    <span class="keywordtype">char</span> fname[PATH_MAX];</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;    <span class="keywordtype">char</span> *buf;</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;    <span class="keywordtype">size_t</span> dsize = options.data_size;</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;    <span class="keywordtype">int</span> fd;</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    buf = malloc(dsize);</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    assert(buf != NULL);</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;    assert((fd = open(<span class="stringliteral">&quot;/dev/urandom&quot;</span>, O_RDONLY)) != -1);</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;    assert(read(fd, buf, dsize) == dsize);</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;    close(fd);</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;    assert(snprintf(fname, PATH_MAX, <span class="stringliteral">&quot;%s/&quot;</span> FILE_NAME,</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;                     mountpoint) &gt; 0);</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;    fd = open(fname, O_WRONLY);</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;    <span class="keywordflow">if</span> (fd == -1) {</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;        perror(fname);</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;        assert(0);</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;    }</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;    assert(write(fd, buf, dsize) == dsize);</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;    assert(write(fd, buf, dsize) == dsize);</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;    free(buf);</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;    close(fd);</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;}</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;<span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *argv[]) {</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;    <span class="keyword">struct </span><a class="code" href="structfuse__args.html">fuse_args</a> args = <a class="code" href="fuse__opt_8h.html#a9bea40fe56b18be9aa110185ab7387ed">FUSE_ARGS_INIT</a>(argc, argv);</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;    <span class="keyword">struct </span>fuse_session *se;</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;    <span class="keyword">struct </span>fuse_cmdline_opts fuse_opts;</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;    pthread_t fs_thread;</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;    assert(<a class="code" href="fuse__opt_8h.html#a539ef1f571c34f516c60c4cbe2901c0e">fuse_opt_parse</a>(&amp;args, &amp;options, option_spec, NULL) == 0);</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;    assert(<a class="code" href="fuse__lowlevel_8h.html#a8421a0cb3b6fb7013c7272c6997d1e08">fuse_parse_cmdline</a>(&amp;args, &amp;fuse_opts) == 0);</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;<span class="preprocessor">#ifndef __FreeBSD__    </span></div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;    assert(<a class="code" href="fuse__opt_8h.html#a21602e6a0fff64fc9c7b642d12382094">fuse_opt_add_arg</a>(&amp;args, <span class="stringliteral">&quot;-oauto_unmount&quot;</span>) == 0);</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;    se = <a class="code" href="fuse__lowlevel_8h.html#a9ee52f81d0c63d9bd46b11314ba596cf">fuse_session_new</a>(&amp;args, &amp;tfs_oper,</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;                          <span class="keyword">sizeof</span>(tfs_oper), NULL);</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;    <a class="code" href="fuse__opt_8h.html#a2cdf272429ab3869a5162976141b287d">fuse_opt_free_args</a>(&amp;args);</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;    assert (se != NULL);</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;    assert(<a class="code" href="fuse__common_8h.html#a292dccc3c7b1799cb054efa2ba0c774b">fuse_set_signal_handlers</a>(se) == 0);</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;    assert(<a class="code" href="fuse__lowlevel_8h.html#aa6d77679a110582684e9ca2da623bbc2">fuse_session_mount</a>(se, fuse_opts.mountpoint) == 0);</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;    <span class="comment">/* Start file-system thread */</span></div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;    assert(pthread_create(&amp;fs_thread, NULL, run_fs, (<span class="keywordtype">void</span> *)se) == 0);</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;    <span class="comment">/* Write test data */</span></div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;    test_fs(fuse_opts.mountpoint);</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;    free(fuse_opts.mountpoint);</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;    <span class="comment">/* Stop file system */</span></div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;    <a class="code" href="fuse__lowlevel_8h.html#a198429f3fbc23ef29ef9971271827690">fuse_session_exit</a>(se);</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;    <a class="code" href="fuse__lowlevel_8h.html#a6c10d942751ddb214863a8b5e53de5e8">fuse_session_unmount</a>(se);</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;    assert(pthread_join(fs_thread, NULL) == 0);</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;    assert(got_write == 1);</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;    <a class="code" href="fuse__common_8h.html#aeb674bbc11074c4fe520b952d6bfdd30">fuse_remove_signal_handlers</a>(se);</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;    <a class="code" href="fuse__lowlevel_8h.html#a08b5503c4e9656f9c4bc88331233cc65">fuse_session_destroy</a>(se);</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;    printf(<span class="stringliteral">&quot;Test completed successfully.\n&quot;</span>);</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;    <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;}</div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;</div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;</div><div class="ttc" id="fuse__lowlevel_8h_html_a08b5503c4e9656f9c4bc88331233cc65"><div class="ttname"><a href="fuse__lowlevel_8h.html#a08b5503c4e9656f9c4bc88331233cc65">fuse_session_destroy</a></div><div class="ttdeci">void fuse_session_destroy(struct fuse_session *se)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8c_source.html#l02621">fuse_lowlevel.c:2621</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html_a2553c03f9a63c75e609e67f90a3a5d88"><div class="ttname"><a href="fuse__lowlevel_8h.html#a2553c03f9a63c75e609e67f90a3a5d88">fuse_reply_err</a></div><div class="ttdeci">int fuse_reply_err(fuse_req_t req, int err)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8c_source.html#l00312">fuse_lowlevel.c:312</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html_a9ee52f81d0c63d9bd46b11314ba596cf"><div class="ttname"><a href="fuse__lowlevel_8h.html#a9ee52f81d0c63d9bd46b11314ba596cf">fuse_session_new</a></div><div class="ttdeci">struct fuse_session * fuse_session_new(struct fuse_args *args, const struct fuse_lowlevel_ops *op, size_t op_size, void *userdata)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8c_source.html#l02809">fuse_lowlevel.c:2809</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html_a198429f3fbc23ef29ef9971271827690"><div class="ttname"><a href="fuse__lowlevel_8h.html#a198429f3fbc23ef29ef9971271827690">fuse_session_exit</a></div><div class="ttdeci">void fuse_session_exit(struct fuse_session *se)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8c_source.html#l03037">fuse_lowlevel.c:3037</a></div></div>
<div class="ttc" id="structfuse__conn__info_html_a8a1c61f5d7cc14249fb6971165bb958e"><div class="ttname"><a href="structfuse__conn__info.html#a8a1c61f5d7cc14249fb6971165bb958e">fuse_conn_info::capable</a></div><div class="ttdeci">unsigned capable</div><div class="ttdef"><b>Definition:</b> <a href="fuse__common_8h_source.html#l00381">fuse_common.h:381</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html_a5f1e538aa3287e251afbe985438c4249"><div class="ttname"><a href="fuse__lowlevel_8h.html#a5f1e538aa3287e251afbe985438c4249">fuse_session_loop</a></div><div class="ttdeci">int fuse_session_loop(struct fuse_session *se)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__loop_8c_source.html#l00019">fuse_loop.c:19</a></div></div>
<div class="ttc" id="structfuse__conn__info_html"><div class="ttname"><a href="structfuse__conn__info.html">fuse_conn_info</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse__common_8h_source.html#l00343">fuse_common.h:343</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html_aa6d77679a110582684e9ca2da623bbc2"><div class="ttname"><a href="fuse__lowlevel_8h.html#aa6d77679a110582684e9ca2da623bbc2">fuse_session_mount</a></div><div class="ttdeci">int fuse_session_mount(struct fuse_session *se, const char *mountpoint)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8c_source.html#l02903">fuse_lowlevel.c:2903</a></div></div>
<div class="ttc" id="fuse__opt_8h_html_a539ef1f571c34f516c60c4cbe2901c0e"><div class="ttname"><a href="fuse__opt_8h.html#a539ef1f571c34f516c60c4cbe2901c0e">fuse_opt_parse</a></div><div class="ttdeci">int fuse_opt_parse(struct fuse_args *args, void *data, const struct fuse_opt opts[], fuse_opt_proc_t proc)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__opt_8c_source.html#l00397">fuse_opt.c:397</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html_a33e2aa4a8905a05397292ae047cd2257"><div class="ttname"><a href="fuse__lowlevel_8h.html#a33e2aa4a8905a05397292ae047cd2257">fuse_req_t</a></div><div class="ttdeci">struct fuse_req * fuse_req_t</div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8h_source.html#l00049">fuse_lowlevel.h:49</a></div></div>
<div class="ttc" id="structfuse__entry__param_html"><div class="ttname"><a href="structfuse__entry__param.html">fuse_entry_param</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8h_source.html#l00059">fuse_lowlevel.h:59</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html_a8421a0cb3b6fb7013c7272c6997d1e08"><div class="ttname"><a href="fuse__lowlevel_8h.html#a8421a0cb3b6fb7013c7272c6997d1e08">fuse_parse_cmdline</a></div><div class="ttdeci">int fuse_parse_cmdline(struct fuse_args *args, struct fuse_cmdline_opts *opts)</div><div class="ttdef"><b>Definition:</b> <a href="helper_8c_source.html#l00202">helper.c:202</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html_a672c45e126cd240f4bcd59bf9b7e3708"><div class="ttname"><a href="fuse__lowlevel_8h.html#a672c45e126cd240f4bcd59bf9b7e3708">fuse_reply_entry</a></div><div class="ttdeci">int fuse_reply_entry(fuse_req_t req, const struct fuse_entry_param *e)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8c_source.html#l00399">fuse_lowlevel.c:399</a></div></div>
<div class="ttc" id="fuse__common_8h_html_a292dccc3c7b1799cb054efa2ba0c774b"><div class="ttname"><a href="fuse__common_8h.html#a292dccc3c7b1799cb054efa2ba0c774b">fuse_set_signal_handlers</a></div><div class="ttdeci">int fuse_set_signal_handlers(struct fuse_session *se)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__signals_8c_source.html#l00062">fuse_signals.c:62</a></div></div>
<div class="ttc" id="fuse__common_8h_html_aeb674bbc11074c4fe520b952d6bfdd30"><div class="ttname"><a href="fuse__common_8h.html#aeb674bbc11074c4fe520b952d6bfdd30">fuse_remove_signal_handlers</a></div><div class="ttdeci">void fuse_remove_signal_handlers(struct fuse_session *se)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__signals_8c_source.html#l00079">fuse_signals.c:79</a></div></div>
<div class="ttc" id="fuse__opt_8h_html_a21602e6a0fff64fc9c7b642d12382094"><div class="ttname"><a href="fuse__opt_8h.html#a21602e6a0fff64fc9c7b642d12382094">fuse_opt_add_arg</a></div><div class="ttdeci">int fuse_opt_add_arg(struct fuse_args *args, const char *arg)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__opt_8c_source.html#l00054">fuse_opt.c:54</a></div></div>
<div class="ttc" id="structfuse__file__info_html"><div class="ttname"><a href="structfuse__file__info.html">fuse_file_info</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse__common_8h_source.html#l00037">fuse_common.h:37</a></div></div>
<div class="ttc" id="fuse__opt_8h_html_a2cdf272429ab3869a5162976141b287d"><div class="ttname"><a href="fuse__opt_8h.html#a2cdf272429ab3869a5162976141b287d">fuse_opt_free_args</a></div><div class="ttdeci">void fuse_opt_free_args(struct fuse_args *args)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__opt_8c_source.html#l00033">fuse_opt.c:33</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html_ad28378dc569019c32acdb4995d70be18"><div class="ttname"><a href="fuse__lowlevel_8h.html#ad28378dc569019c32acdb4995d70be18">fuse_reply_attr</a></div><div class="ttdeci">int fuse_reply_attr(fuse_req_t req, const struct stat *attr, double attr_timeout)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8c_source.html#l00431">fuse_lowlevel.c:431</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html_a6c10d942751ddb214863a8b5e53de5e8"><div class="ttname"><a href="fuse__lowlevel_8h.html#a6c10d942751ddb214863a8b5e53de5e8">fuse_session_unmount</a></div><div class="ttdeci">void fuse_session_unmount(struct fuse_session *se)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8c_source.html#l02958">fuse_lowlevel.c:2958</a></div></div>
<div class="ttc" id="fuse__opt_8h_html_aca35962e17d189ceb5447f8eea11bd33"><div class="ttname"><a href="fuse__opt_8h.html#aca35962e17d189ceb5447f8eea11bd33">FUSE_OPT_END</a></div><div class="ttdeci">#define FUSE_OPT_END</div><div class="ttdef"><b>Definition:</b> <a href="fuse__opt_8h_source.html#l00104">fuse_opt.h:104</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html_a14d7299559cf05272b838cfc6388ef91"><div class="ttname"><a href="fuse__lowlevel_8h.html#a14d7299559cf05272b838cfc6388ef91">FUSE_ROOT_ID</a></div><div class="ttdeci">#define FUSE_ROOT_ID</div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8h_source.html#l00043">fuse_lowlevel.h:43</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html_ad119a72f00b4cd2e4a500fd3364ae1e2"><div class="ttname"><a href="fuse__lowlevel_8h.html#ad119a72f00b4cd2e4a500fd3364ae1e2">fuse_ino_t</a></div><div class="ttdeci">uint64_t fuse_ino_t</div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8h_source.html#l00046">fuse_lowlevel.h:46</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html_aa3cfa73f61d6ef461ab5a3fbf859eb97"><div class="ttname"><a href="fuse__lowlevel_8h.html#aa3cfa73f61d6ef461ab5a3fbf859eb97">fuse_reply_write</a></div><div class="ttdeci">int fuse_reply_write(fuse_req_t req, size_t count)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8c_source.html#l00460">fuse_lowlevel.c:460</a></div></div>
<div class="ttc" id="fuse__common_8h_html_a4839fce31097f4b4da7a1f01169228fa"><div class="ttname"><a href="fuse__common_8h.html#a4839fce31097f4b4da7a1f01169228fa">FUSE_CAP_WRITEBACK_CACHE</a></div><div class="ttdeci">#define FUSE_CAP_WRITEBACK_CACHE</div><div class="ttdef"><b>Definition:</b> <a href="fuse__common_8h_source.html#l00266">fuse_common.h:266</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html_a170f8c6b953d70928e83bcecee43bfdc"><div class="ttname"><a href="fuse__lowlevel_8h.html#a170f8c6b953d70928e83bcecee43bfdc">fuse_reply_open</a></div><div class="ttdeci">int fuse_reply_open(fuse_req_t req, const struct fuse_file_info *fi)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8c_source.html#l00451">fuse_lowlevel.c:451</a></div></div>
<div class="ttc" id="fuse__lowlevel_8h_html"><div class="ttname"><a href="fuse__lowlevel_8h.html">fuse_lowlevel.h</a></div></div>
<div class="ttc" id="structfuse__lowlevel__ops_html"><div class="ttname"><a href="structfuse__lowlevel__ops.html">fuse_lowlevel_ops</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8h_source.html#l00175">fuse_lowlevel.h:175</a></div></div>
<div class="ttc" id="structfuse__opt_html"><div class="ttname"><a href="structfuse__opt.html">fuse_opt</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse__opt_8h_source.html#l00077">fuse_opt.h:77</a></div></div>
<div class="ttc" id="structfuse__conn__info_html_af45de81548b591f3004353a324e4e04d"><div class="ttname"><a href="structfuse__conn__info.html#af45de81548b591f3004353a324e4e04d">fuse_conn_info::want</a></div><div class="ttdeci">unsigned want</div><div class="ttdef"><b>Definition:</b> <a href="fuse__common_8h_source.html#l00389">fuse_common.h:389</a></div></div>
<div class="ttc" id="structfuse__args_html"><div class="ttname"><a href="structfuse__args.html">fuse_args</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse__opt_8h_source.html#l00109">fuse_opt.h:109</a></div></div>
<div class="ttc" id="fuse__opt_8h_html_a9bea40fe56b18be9aa110185ab7387ed"><div class="ttname"><a href="fuse__opt_8h.html#a9bea40fe56b18be9aa110185ab7387ed">FUSE_ARGS_INIT</a></div><div class="ttdeci">#define FUSE_ARGS_INIT(argc, argv)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__opt_8h_source.html#l00123">fuse_opt.h:123</a></div></div>
<div class="ttc" id="structfuse__lowlevel__ops_html_aa8ed20e1d06c42a386404fba0d3e56b5"><div class="ttname"><a href="structfuse__lowlevel__ops.html#aa8ed20e1d06c42a386404fba0d3e56b5">fuse_lowlevel_ops::init</a></div><div class="ttdeci">void(* init)(void *userdata, struct fuse_conn_info *conn)</div><div class="ttdef"><b>Definition:</b> <a href="fuse__lowlevel_8h_source.html#l00192">fuse_lowlevel.h:192</a></div></div>
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